package com.wfl.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.wfl.reggie.common.CustomException;
import com.wfl.reggie.common.R;
import com.wfl.reggie.dto.DishDto;
import com.wfl.reggie.dto.SetmealDto;
import com.wfl.reggie.entity.Category;
import com.wfl.reggie.entity.Dish;
import com.wfl.reggie.entity.Setmeal;
import com.wfl.reggie.service.CategoryService;
import com.wfl.reggie.service.SetmealDishService;
import com.wfl.reggie.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@RestController
@RequestMapping("/setmeal")
@Slf4j
@Api(tags = "套餐相关接口")
public class SetmealController {

    @Autowired
    private SetmealService setmealService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private SetmealDishService setmealDishService;

    /**
     * 新增套餐
     * @param setmealDto
     * @return
     */
    @PostMapping
    @ApiOperation(value = "新增套餐接口")
    @CacheEvict(value = "setmealCache", allEntries = true)
    public R<String> save(@RequestBody SetmealDto setmealDto){
        log.info("套餐信息：{}",setmealDto);

        setmealService.saveWithDish(setmealDto);

        return R.success("新增套餐成功！！");
    }

    /**
     * 套餐分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    @ApiOperation(value = "套餐分页查询接口")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "page", value = "页码", required = true),
            @ApiImplicitParam(name = "pageSize", value = "每页记录数", required = true),
            @ApiImplicitParam(name = "name", value = "套餐名称", required = false),
    })
    public R<Page> page(int page, int pageSize, String name){
        //分页构造器
        Page<Setmeal> pageinfo = new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage = new Page<>();

        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        //添加查询条件，根据name进行like模糊查询
        queryWrapper.like(name != null, Setmeal::getName,name);
        //添加排序条件，根据更新时间降序排列
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealService.page(pageinfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageinfo,dtoPage,"records");
        List<Setmeal> records = pageinfo.getRecords();

        List<SetmealDto> list = records.stream().map((item) ->{
            SetmealDto setmealDto = new SetmealDto();
            //对象的拷贝
            BeanUtils.copyProperties(item,setmealDto);
            //分类id
            Long categoryId = item.getCategoryId();
            //根据分类id查询分类对象
            Category category = categoryService.getById(categoryId);
            if (category != null){
                //分类名称
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);
        return R.success(dtoPage);
    }

    /**
     * （可批量）1起售 0停售
     * @param flag
     * @param ids
     * @return
     */
    @PostMapping("/status/{flag}")
    @ApiOperation(value = "状态接口")
    public R<String> status(@PathVariable Integer flag, String[] ids){
        if (ids == null || ids.length == 0){
            throw new CustomException("参数有误");
        }

        LambdaUpdateWrapper<Setmeal> updateWrapper = new LambdaUpdateWrapper<>();
        //set()为sql中的set，in()为sql中的in
        updateWrapper.set(Setmeal::getStatus,flag).in(Setmeal::getId,ids);
        setmealService.update(updateWrapper);
        return R.success(flag == 0 ? "已停售" : "已起售");
    }

    /**
     * 删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation(value = "删除套餐接口")
    @CacheEvict(value = "setmealCache", allEntries = true)
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("ids:{}",ids);

        setmealService.removeWithDish(ids);
        return R.success("套餐数据删除成功");
    }


    /**
     * 根据id查询套餐信息和对应菜类
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation(value = "根据id查询套餐信息和对应菜类接口")
    public R<SetmealDto> get(@PathVariable Long id){
        SetmealDto setmealDto = setmealService.getByIdWithFlavor(id);
        if(setmealDto != null) {
            return R.success(setmealDto);
        }
        return R.error("未找到菜品信息");
    }

    /**
     * 修改套餐
     * @param setmealDto
     * @return
     */
    @PutMapping
    @ApiOperation(value = "修改套餐接口")
    public R<String> update(@RequestBody SetmealDto setmealDto){
        setmealService.updateWithFlavor(setmealDto);
        return R.success("修改成功");
    }

    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @Cacheable(value = "setmealCache", key = "#setmeal.categoryId + '_' + #setmeal.status")
    @GetMapping("/list")
    @ApiOperation(value = "根据条件查询套餐数据接口")
    public  R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null, Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null, Setmeal::getStatus,setmeal.getStatus());
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);

        return R.success(list);
    }

}
